DE69805488D1 - MELTING OVEN WITH REDUCED PRESSURE - Google Patents
MELTING OVEN WITH REDUCED PRESSUREInfo
- Publication number
- DE69805488D1 DE69805488D1 DE69805488T DE69805488T DE69805488D1 DE 69805488 D1 DE69805488 D1 DE 69805488D1 DE 69805488 T DE69805488 T DE 69805488T DE 69805488 T DE69805488 T DE 69805488T DE 69805488 D1 DE69805488 D1 DE 69805488D1
- Authority
- DE
- Germany
- Prior art keywords
- furnace
- flange
- refining
- refining furnace
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/50—Tilting mechanisms for converters
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/04—Refining by applying a vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S266/00—Metallurgical apparatus
- Y10S266/903—Safety shields
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
- Glass Compositions (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
In a refining furnace which is used for vacuum refining by mounting a sealing cover on the refining furnace so as to cover the furnace throat of the refining furnace and to be in close contact with a sealing flange (10) formed on the refining furnace. The adhesion of metal and slag to the sealing flange is prevented without using any flange cover. A sealing flange (10) is formed on the outer surface of a refining furnace (1) at a position on a conical part (8) extending between a furnace throat (9) and a straight body part or on the straight body part. A slag-stopping dummy flange (11) is formed on the outer surface of the refining furnace (1) at a position between a furnace throat (9) and the sealing flange (10). The slag-stopping dummy flange (11) has an outer circumference lying on the inner side of the inner circumference of a sealing cover (4) and on the outer side of the inner circumference of a lower end part of a dust collecting hood for atmospheric refining. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9060198A JPH10237535A (en) | 1997-02-28 | 1997-02-28 | Vacuum refining furnace |
PCT/JP1998/000821 WO1998038343A1 (en) | 1997-02-28 | 1998-02-27 | Reduced pressure smelting furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69805488D1 true DE69805488D1 (en) | 2002-06-27 |
DE69805488T2 DE69805488T2 (en) | 2002-11-21 |
Family
ID=13135229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69805488T Expired - Fee Related DE69805488T2 (en) | 1997-02-28 | 1998-02-27 | MELTING OVEN WITH REDUCED PRESSURE |
Country Status (9)
Country | Link |
---|---|
US (1) | US6162387A (en) |
EP (1) | EP0921201B1 (en) |
JP (1) | JPH10237535A (en) |
KR (1) | KR100292470B1 (en) |
CN (1) | CN1079436C (en) |
AT (1) | ATE217911T1 (en) |
DE (1) | DE69805488T2 (en) |
TW (1) | TW434321B (en) |
WO (1) | WO1998038343A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008027006A1 (en) * | 2007-12-03 | 2009-06-04 | Sms Mevac Gmbh | Apparatus for the secondary and vacuum metallurgical treatment of liquid steel |
KR101252642B1 (en) * | 2008-12-30 | 2013-04-09 | 주식회사 포스코 | Refining furnace and refining method using thereof |
CN103045793B (en) * | 2013-01-05 | 2015-05-06 | 莱芜钢铁集团有限公司 | Vacuum smelting device for converter and use method of vacuum smelting device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3632097A (en) * | 1970-03-20 | 1972-01-04 | United States Steel Corp | Steel converter |
US3764124A (en) * | 1971-04-02 | 1973-10-09 | Usinor | Pouring vessel-caisson for treating molten metal in a regulated atmosphere |
DD97567A1 (en) * | 1972-07-12 | 1973-05-14 | ||
US3854932A (en) * | 1973-06-18 | 1974-12-17 | Allegheny Ludlum Ind Inc | Process for production of stainless steel |
US4149706A (en) * | 1976-03-08 | 1979-04-17 | Hoogovens Ijmuiden, B.V. | Slag shield for a steel converter |
JPS5839885A (en) * | 1981-08-31 | 1983-03-08 | Shimadzu Corp | Gate valve for pipeline |
FR2564861B1 (en) * | 1984-05-24 | 1989-03-10 | Stein Heurtey | POCKET COVER FOR TREATING LIQUID STEEL. |
JPH0823598B2 (en) * | 1987-11-09 | 1996-03-06 | 株式会社日立製作所 | Radioactive substance removal device |
JPH01123198U (en) * | 1988-02-15 | 1989-08-22 | ||
JPH0263646A (en) * | 1988-08-31 | 1990-03-02 | Kawasaki Steel Corp | Vacuum casting apparatus |
JP2805833B2 (en) * | 1989-05-22 | 1998-09-30 | 大同特殊鋼株式会社 | Refining equipment |
JPH08283831A (en) * | 1995-04-10 | 1996-10-29 | Nippon Steel Corp | Apparatus for vacuum-refining molten metal |
JP3458042B2 (en) * | 1996-07-09 | 2003-10-20 | 株式会社神戸製鋼所 | Molten steel processing equipment using a ladle |
-
1997
- 1997-02-28 JP JP9060198A patent/JPH10237535A/en not_active Ceased
-
1998
- 1998-02-27 EP EP98905694A patent/EP0921201B1/en not_active Expired - Lifetime
- 1998-02-27 TW TW087102912A patent/TW434321B/en not_active IP Right Cessation
- 1998-02-27 US US09/000,219 patent/US6162387A/en not_active Expired - Fee Related
- 1998-02-27 CN CN98800211A patent/CN1079436C/en not_active Expired - Fee Related
- 1998-02-27 KR KR1019980707723A patent/KR100292470B1/en not_active IP Right Cessation
- 1998-02-27 AT AT98905694T patent/ATE217911T1/en not_active IP Right Cessation
- 1998-02-27 WO PCT/JP1998/000821 patent/WO1998038343A1/en active IP Right Grant
- 1998-02-27 DE DE69805488T patent/DE69805488T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20000064802A (en) | 2000-11-06 |
WO1998038343A1 (en) | 1998-09-03 |
JPH10237535A (en) | 1998-09-08 |
ATE217911T1 (en) | 2002-06-15 |
KR100292470B1 (en) | 2001-06-01 |
EP0921201B1 (en) | 2002-05-22 |
CN1217754A (en) | 1999-05-26 |
DE69805488T2 (en) | 2002-11-21 |
TW434321B (en) | 2001-05-16 |
EP0921201A4 (en) | 2000-05-17 |
CN1079436C (en) | 2002-02-20 |
EP0921201A1 (en) | 1999-06-09 |
US6162387A (en) | 2000-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |